The best Side of how long does it take antminer s19 to mine 1 bitcoin
The best Side of how long does it take antminer s19 to mine 1 bitcoin
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a-four) Verify If your pins of the very first chip are certainly not soldered very well (it was present in repair that the pins are tinned observing through the aspect, but the pins are certainly not stained with tin whatsoever if the chip is eradicated)
Repair system: Check out the appearance, measure the chip capacitor or resistance in entrance, typically It is brought on by weak chip soldering or simply a chip capacitor, resistor damaging or abnormal resistance;
Solder paste column M705, flux, board washing water with complete alcohol; board washing water is applied to wash up the solder residue following repair; thermal gel (specification: Fujipoly SPG-30B) is used to smear the area of the chip soon after repair ; ball-planting steel mesh, solder absorption wire, solder ball (the ball diameter is recommended to become 0.
(3) When changing the chip, it's important to plant tin within the pins of your chip to start with, after which you can solder it towards the hash board. Apply warmth-conducting gel evenly about the surface area on the chip after which set up the large warmth sink.
three. If your PIC sensor NG is displayed over the LCD monitor from the hash board tester and the test browse temperature is irregular, then Stick to the actions down below to troubleshoot: A) Check out if the four resistors of R24~R27 are welding abnormally, and Examine whether the welding of PIN2, three of U3 is normal; Determine five-thirteen B) Look at if the 4 temperature senses U4, R28~R30, U6, R31~R33, U7, R34~R36, U8, R37~R39 plus the matching resistance welding are abnormal, The placement of your temperature feeling is demonstrated in Figure five-fourteen, the temperature feeling is all Found about the back on the PCB, the resistance is found to the entrance of your PCB, and if the temperature-delicate 3.3V electric power supply is regular;
● Once the schedule exam is handed (the brief-circuit check of the final regimen take a look at is important to avoid the chip or other supplies remaining burnt mainly because of the quick circuit when the ability is turned on), the chip examination is often carried out Along with the hashboard tester, and the positioning could be determined according to the test results of the hashboard tester.
three. Just after repairing, the hashboard needs to be analyzed for in excess of two situations being Okay ahead of it could pass!
8. To replace a fresh chip, printing pins and soldering paste are necessary making sure that the chip is pre-soldered then soldered for the PCBA for repair
Servicing personnel have to have electronic information, at the very least 1 calendar year of upkeep working experience, and proficiency in BGA/QFN/LGA packaging and welding technological know-how.
If your chip just isn't found, check for doable difficulties like irregular voltage on the 1V8 and 0V8 take a look at points, concerns with the U1 and U2 circuits, resistance of R8 or R9, and whether or not the pins of the first chip are soldered well.
nine. The take a look at fixtures at the upkeep end all use the Test_Mode mode and make use of the scan code method for screening.
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Referring for the examination approach document, the final problems are assembly system complications and Command board course of action challenges.
Evaluate whether or not the resistance value of the chip pad pin is similar to regular, if Contact Here not, check if the resistance price of the little resistor close to it is simply too higher, if it is too substantial, just switch it;